Safety Helmet Visor Setting Mechanism

ABSTRACT

The present invention is to provided a safety helmet visor setting mechanism, comprising: a shell, having a shaft base at each of two insides, and its one side is provided with a shell base, where the shell base is provided with a lodging space at its internal and with a wall at its external; a control mechanism, located at the right side of the shell, having a knob for turning, which drives an actuating element that again links a handle to rotate a displacement, where the knob and the actuating element are provided with a fixed dish in between, and the fixed dish and the actuating element are provided with a corresponding oblique chunks and sliders in between, while the fixed dish and the handle are provided with a corresponding clasp segments and lumps; a joint mechanism, set up on shaft base of both sides of the shell, comprising a first visor joint and a second visor joint, and the two visor joints are provided with hollows, where the first visor joint and the handle of the control mechanism are linked by a rod; and a visor, having a clasp slice at each of both sides, for the insertion into the hollow of the visor joint; through adjusting the knob of the control mechanism to drive the actuating element and the handle for carrying out a rotational displacement, and through the handle for simultaneously driving the two visor joints of the joint mechanism to undergo a rotational displacement, which will enable the control of the lifting and lowering of the visor.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to safety helmet visor setting mechanisms, more particularly, to one that features easy in lifting the visor and handy for the assembly or disassembly.

2. Description of the Prior Art

The general safety helmet protective lens is categorized into: a windshield visor which is fixed outside the shell, and a sunshade visor which is fixed inside the shell; where the latter is installed inside the shell and located between the shell and the Styrofoam inner helmet. Once the visor is damaged for a replacement, it has to first unload the helmet liner fixed in the inner helmet, and then discharge the inner helmet, which is then ready to remove the visor for the replacement. The reloading is reversing the whole procedure which is troublesome. Moreover, the installation of the helmet liner involves specialized skills and practice, and the appropriateness of the installation affects considerably the fit and comfort of the head of the user, which may substantially distract the user, and it absolutely calls for great improvement.

The applicant of this invention realized the situation and instructed the inventor to push hardly ahead with the research and design, and eventually gave birth to the present invention.

SUMMARY OF THE INVENTION

The main object of the present invention is to provide a safety helmet visor setting mechanism which is easy in lifting the visor.

The other object of the present invention is to provide a safety helmet visor setting mechanism which is handy for the assembly or disassembly of the visor, which proves to have greatly improved the drawbacks of the prior art.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a three-dimensional exploded view of the right side portion of the shell of the present invention;

FIG. 2 shows a three-dimensional diagram of the knob of FIG. 1;

FIG. 3 shows a three-dimensional diagram of the fixed dish of FIG. 1;

FIG. 4 shows a three-dimensional diagram of the handle of FIG. 1;

FIG. 5 shows a three-dimensional diagram of the first visor joint of FIG. 1;

FIG. 6 is a schematic side view of the lifting of the visor of the present invention;

FIG. 7 shows a sectional diagram viewing from A-A in FIG. 6;

FIG. 8 shows a sectional diagram viewing from B-B in FIG. 6;

FIG. 9 is a three-dimensional exploded view of the left side portion of the shell of the present invention;

FIG. 10 is an assembled sectional view of the left side portion of the shell of the present invention;

FIG. 11 is a schematic side view of the lowering of the visor of the present invention;

FIG. 12 is a schematic diagram of the knob at position (1) of the present invention;

FIG. 13 is a schematic diagram of the knob at position (2) of the present invention;

FIG. 14 is a schematic diagram of the knob at position (3) of the present invention;

FIG. 15 is a schematic diagram of the relative positions of the fixed dish and the handle at position (1) of the present invention;

FIG. 16 is a schematic diagram of the relative positions of the fixed dish and the actuating element at position (1) of the present invention;

FIG. 17 is a schematic diagram of the relative positions of the fixed dish and the handle at position (2) of the present invention;

FIG. 18 is a schematic diagram of the relative positions of the fixed dish and the actuating element at position (2) of the present invention;

FIG. 19 is a schematic diagram of the relative positions of the fixed dish and the handle at position (3) of the present invention; and

FIG. 20 is a schematic diagram of the relative positions of the fixed dish and the actuating element at position (3) of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

To achieve the foregoing objects of the present invention, the techniques adopted and the achievable function are detailed described with reference to the following preferred exemplified embodiment and the accompanying drawings, which is expected to help the honorable Examiner in comprehending the contents of the present invention thoroughly.

Referring to FIGS. 1-8, the present invention comprises: a shell 1, having a shaft base 11, 12 at each of both insides, and the shaft base 11 at the right side is provided with a shell base 10 at its bottom, where the shell base 10 is provided with a lodging space 13 at its inside, and the lodging space 13 has a plurality of through holes at its bottom, while the shell base 10 is provided with a wall 14 at its outside, which 14 has a gap 15 at its one side;

a control mechanism 200, set up at the right side of the shell 1, comprising: a knob 2, located at the outer of the wall 14 of the shell base 10, has an adjusting piece at its external and a rectangular shaft 21 at its internal, and its internal, corresponding to the gap 15 of the wall 14, has a barrier 22, where the fitting between the barrier 22 and the gap 15 of the wall 14 forms the constraints (referring to FIGS. 12-14) of the knob 2 during its turning up and down; a torque spring 23, placed at the internal of the wall 14 of the shell base 10 and the knob 2, where its two sides jostle with the wall 14 and the knob 2 respectively; a spring 24, located in the lodging space 13 of the shell base 10; a fixed dish 20, having a plurality of clasp pins 25 at its one end, which are used for seizing in the through holes of the lodging space 13 of the shell base 10, and at the same time pressing the spring 24, while the other end is provided with equally distanced uneven oblique chunks 26 and clasp segment 27, where the clasp segment 27 are a bit taller than the oblique chunks 26; a handle 3, annular in shape, is located on the fixed dish 20, where its one surface is provided with a plurality of equally distanced sliders 31 which correspond with the oblique chunks 26 of the fixed dish 20, and both have a oblique surface fitting to each other, while the other surface is provided with a plurality of equally distanced clasp chunks 32, and is provided with a protruded link bar 33 at its one side; an actuating element 30, being T-shaped, has one end formed as circular tube that is able to penetrate the handle 3 and the fixed dish 20, and the circular tube has a square hole at its inside to join the shaft 21 of the knob 2, while the other end is in the shape of a disk protruded out from the handle 3, and has a plurality of equally distanced lumps 34 at its bottom corresponding to the clasp segments 27 of the fixed dish 20, where both have a oblique surface fitting to each other, and its rim has a plurality of equally distanced push pieces 35 that reside within the intervals of the clasp chunks 32; the control mechanism 200, made up of the above knob 2, torque spring 23, spring 24, fixed dish 20, handle 3 and actuating element 30, is formed by fastening the above parts to both sides of the shell 1 with a screw 36, and through the restoring force of the spring 24, to have the fixed dish 20 always moving leftward (outward), which makes the oblique chunks 26 and the clasp segments 27 of the fixed dish 20 to jostle with the backside of the actuating element 30 and the handle 3, to form a match between the oblique chunk 26 and the slider 31 and between the clasp segment 27 and the lump 34; both the foregoing mentioned oblique chunks 26 of the fixed dish 20 and the sliders 31 of the handle 3 are six equally distanced pieces; whereas the clasp chunks 32 of the handle 3, the push pieces 35 of the actuating elements 30, the clasp segments 27 of the fixed dish 20 and the lumps 34 of the actuating elements 30 are all three equally distanced pieces;

a joint mechanism 400, situated at each of two sides of the shell 1, is joined to the visor for a fixing, comprising: a first visor joint 4, having a round hole 41 at its bottom portion, to put on the shaft base 11 at right inside of the shell 1, where the shaft base 11 is also encircled by a torque spring 42, which has its two ends join one side of the first visor joint 4 and the top portion of the shell 1, followed by a fastening through a screw 43. The first visor joint 4 is provided with a hollow 44 at its top portion, where the hollow 44 is provided with a vertical divider 45 at its middle, and with a horizontal post 46 at its top outside, to form the entrance of the hollow 44. The first visor joint 4 is provided with a link slice 47 at one side of the top portion, which connects to the link bar 33 of the handle 3 through a rod 48.

a second visor joint 5, referring to FIGS. 9 & 10, put on the shaft base 12 at left inside of the shell 1 and fastened by a screw 53, has a structure similar to the first visor joint 4, and has the same round hole 51, hollow 54, divider 55 and horizontal post 56, but excluding a torque spring and a link slice; and

a visor 6, referring to FIGS. 5, 6, 8, 9 & 10, shaped an indented arc, having a clasp slice 61 at each of two sides, for inserting into the hollows 44 & 54 of the first and the second visor joints 4 & 5, where the clasp slice 61 is provided with a dent 62 at its middle, for the insertion of the dividers 45 & 55, and with protruded bars 63 at its outside, which joins the inner sides of the horizontal post 46 (right end) and the hollow 54 (left end).

According to the foregoing structural combination, both ends of the visor 6 join the first and the second visor joints 4 & 5 respectively, and a rod 48 links the control mechanism 200 to the joint mechanism 400, shown in FIGS. 6, 8, & 10. When not in use, the visor 6 is hidden in the internal of the shell 1 and is facing upward as the first and the second visor joints 4 & 5 do, and the link bar 33 of the handle 3 appears on the top position, shown in FIG. 6, meanwhile, the knob 2 is at position (1), and the clasp segment 27 of the fixed dish 20 and the lump 34 of the actuating element 30 appear to jostle against each other, shown in FIG. 16, while the oblique chunk 26 of the fixed dish 20 and the slider 31 of the handle 3 appear to separate each other (untouched), shown in FIG. 15, the fixed dish 20 is connected by the spring 24, once the clasp segment 27 of the fixed dish 20 and the lump 34 of the actuating element 30 jostle against each other, which forces the fixed dish 20 to move inward (right), makes the spring 24 pressed, and at the same time pushes the oblique chunk 26 of the fixed dish 20 and the slider 31 of the handle 3 to separate each other.

When the visor 6 is in use, the knob 2 is turned downward (inward) (shown by the arrow in FIG. 12), up to the position (3) (shown in FIG. 14), to drive the actuating element 30 simultaneously to rotate a certain angle. Through the push piece 35 of the actuating element 30 pushing the clasp chunk 32 of the handle 3 (shown in FIG. 6), the handle 3 is forced to rotate inward the certain angle. Again through the linkage of the link bar 33, the rod 48 and the link slice 47, the first visor joint 4 is thus driven to rotate downward for an angle with the shaft base 11 as the axis, which will drive the visor 6 to descend to be in place, that is, right at the window in the front of the shell 1, for the sunshade purpose, shown in FIG. 11. Once the knob 2 is at position (3), the oblique chunk 26 of the fixed dish 20 joins closely the backside of the slider 31 of the handle 3, while the clasp segment 27 of the fixed dish 20 joins the front side of the lump 34 of the actuating element 30, shown in FIGS. 19 & 20; the knob 2 accommodates a torque spring 23 at its internal, through the restoring force of the torque spring 23, the knob 2 is forced to immediately return to position (2), shown in FIG. 13, and simultaneously drive the actuating element 30 to turn back an angle. At the moment, the oblique chunk 26 of the fixed dish 20 harmonizes with the slider 31 of the handle 3, and the clasp segment 27 of the fixed dish 20 harmonizes with the lump 34 of the actuating element 30, shown in FIGS. 17 & 18, whereas the push piece 35 of the actuating element 30 is located in between the clasp chunks 32 of the handle 3 (shown in FIG. 11), which targets for the easy operation of the next step.

When the sunshade isn't demanded, the procedure is to turn the knob 2 upward as the arrow shown in FIG. 13 to position (1), which simultaneously drives the actuating element 30 to turn an angle, such that the oblique chunk 26 of the fixed dish 20 and the slider 31 of the handle 3 appear to separate each other (shown in FIG. 15), while the clasp segment 27 of the fixed dish 20 and the lump 34 of the actuating element 30 appear to jostle against each other (shown in FIG. 16). The first visor joint 4 is then lifted promptly subject to the restoring force of the torque spring 42, and simultaneously drives the visor 6 to hide in the top inside of the shell 1, shown in FIG. 6.

As regards the up-down operation with the visor 6, the first visor joint 4 rotates with respect to the shaft base 11 of the shell 1 as the rotational axis, and the second visor joint 5 in the same way takes the shaft base 12 of the other end of the shell 1 as its rotational axis; therefore, it can be driven to rotate simultaneously by the first visor joint 4 and the visor 6.

When the visor 6 is to be unloaded, press the visor 6 down first, shown in FIG. 11, then hold the middle portion of the visor 6 by hand, with a slight outward pull, as the arrow shown in FIGS. 8 & 10, and the clasp slices 61 at both sides of the visor 6 are easy to be unloaded from the hollows 44 & 54 of the first and the second visor joint 4 & 5. Reversely, the loading is accomplished by first inserting the clasp slice 61 at the left side of the visor 6 into the hollow 54 of the second visor joint 5, shown in FIG. 10, followed by inserting the clasp slice 61 at the right side of the visor 6 into the hollow 44 of the first visor joint 4, shown in FIG. 8. Meanwhile, the dividers 45 & 55 are inserted into the dents 62 of the visor 6, and the protruded bars 63 are seized in the horizontal post 46 and the inner side of the hollow 54, which then puts the visor 6 in place, and ready for lifting or lowering, shown in FIGS. 6 & 11.

Moreover, the separation and combination of the control mechanism 200 of the present invention is accomplished by the up or down displacement of the knob 2, and again through the rod 48 pulling the first visor joint 4 of the joint mechanism 400 for a lifting or a lowering, to further drive the visor 6 to lift or lower, which is pretty easy, handy and prompt.

From the description in the above, the present invention features at least the following advantages and functions, which is much creative than the prior art.

-   -   1. The assembly or disassembly of the visor 6 is not only easy         and prompt but free of stripping or installing the helmet liner         and needless of any tools.     -   2. The lifting or lowering of the visor 6 is not only easy and         prompt but economical of effort.         It's worth to lay particular stress that the traits and spirit         of the design of the helmet visor setting mechanism of the         present invention containing not only the control mechanism 200         and the joint mechanism 400, but the integrated structure made         up of the clasp slices 61 at both sides of the visor 6 and the         first visor joint 4 and the second visor joint 5. Therefore, any         variations of equivalent structure that make use of the         techniques and design spirit of the present invention come         within the range of the claims of the present invention.

To sum up, the disclosed concrete structure of the exemplified embodiment of the present invention is not only unknown to the prior art, but surely can accomplish the expected objective and function, which is construed as absolutely novel and creativeness and is compliant to the requirements of patent law, and a patent application for the invention is then filed. 

1. A safety helmet visor setting mechanism, comprising: a.) a shell, having a shaft base at each of two insides, and one side being provided with a shell base, where the shell base is provided with a lodging space at its internal and with a wall at its external; b.) a control mechanism, located at the right side of said shell, having a knob for turning, which drives an actuating element that again links a handle to rotate a displacement, where the knob and the actuating element are provided with a fixed dish in between, and the fixed dish and the actuating element being provided with corresponding oblique chunks and sliders in between, while the fixed dish and the handle are provided with corresponding clasp segments and lumps; c.) a joint mechanism, set up on shaft base of both sides of said shell, comprising a first visor joint and a second visor joint, and the two visor joints being provided with hollows, where the first visor joint and the handle of said control mechanism are linked by a rod; and d.) a visor, having a clasp slice at each of both sides, for the insertion into the hollow of the visor joint; wherein through the adjustment of the knob of said control mechanism, to drive the actuating element and the handle for carrying out a rotational displacement, and through the handle simultaneously driving the first visor joint of said joint mechanism for the rotational displacement, to control the lifting and lowering of said visor.
 2. A safety helmet visor setting mechanism as in claim 1 wherein the wall of the shell base of said shell is provided with a gap, and the knob inside being provided with a corresponding barrier.
 3. A safety helmet visor setting mechanism as in claim 1 wherein said control mechanism comprises: a.) a knob, located at the outside of the wall of the shell base of said shell, having an adjusting piece at its external and a shaft at its internal; b.) a torque spring, placed between the wall of the shell base and the knob, where its two sides jostle with the wall and the knob respectively; c.) a spring, located in a lodging space of the shell base; d.) a fixed dish, located in the lodging space of the shell base and pressing a spring, having a plurality of distanced uneven oblique chunks and clasp segments; e.) a handle, located on the fixed dish, where its one end is provided with a plurality of distanced sliders which correspond to the oblique chunks of the fixed dish, while the other end is provided with a plurality of distanced clasp chunks, and its one side being provided with a link bar; f.) an actuating element, having one end to penetrate the handle and the fixed dish, and joining the shaft of the knob, while the other end protrudes out from the handle, and having a plurality of distanced lumps at its bottom which correspond to the clasp segments of the fixed dish, and having a plurality of distanced push pieces at its rim, for pushing the clasp chunks of the handle; and g.) a screw, capable to fasten the above parts with a threaded fixing.
 4. A safety helmet visor setting mechanism as in claim 3 wherein the oblique chunk of the fixed dish and the slider of the handle each has a corresponding oblique surface and are six equally distanced pieces.
 5. A safety helmet visor setting mechanism as in claim 3 wherein the clasp segment of the fixed dish and the slider of the actuating element each has a corresponding oblique surface and are three equally distanced pieces.
 6. A safety helmet visor setting mechanism as in claim 3 wherein the clasp chunks of the handle and the push pieces of the actuating element are both three equally distanced pieces.
 7. A safety helmet visor setting mechanism as in claim 1 wherein said joint mechanism comprises: a.) a first visor joint, pivoted on the shaft base at the right inside of said shell, having a torque spring in it, and being provided with a hollow on its top and with a link slice at its one side; b.) a second visor joint, pivoted on the shaft base at the left inside of said shell, and being provided with a hollow on its top; and c.) a visor, having a clasp slice at each of two sides, which penetrate the hollows of said first and second visor joints.
 8. A safety helmet visor setting mechanism as in claim 7 wherein said first and second visor joints each is provided with a divider in its middle portion and with a horizontal post at its top outside, where the clasp slice of said visor is provided with a dent at its middle portion and with protruded bars at its outside.
 9. A safety helmet visor setting mechanism, comprising: a.) a shell, having a shaft base at each of two insides; b.) a first visor joint, pivoted on the shaft base at the right inside of said shell, having a torque spring in it, and being provided with a hollow on its top; c.) a second visor joint, pivoted on the shaft base at the left inside of said shell, and being provided with a hollow on its top; and d.) a visor, having a clasp slice at each of two sides, for the insertion into the hollows of said first and second visor joints, to achieve the handiness in the assembly and disassembly.
 10. A safety helmet visor setting mechanism as in claim 9 wherein said second visor joint is provided with a divider in its middle portion and with a horizontal post at its top outside, where the clasp slice of said visor is provided with a dent at its middle portion and with protruded bars at its outside. 